Home / 1,565,969.17-2,160,935.16-921,264.79

Finding the Fourth Proportional to 1,565,969.17, 2,160,935.16 and 921,264.79

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Solution

The fourth proportional to 1,565,969.17, 2,160,935.16 and 921,264.79 is: 1,271,285.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565,969.17 : 2,160,935.16 = 921,264.79 : x
  2. Step 2: Convert to fraction form
    1,565,969.17/2,160,935.16 = 921,264.79/x
  3. Step 3: Cross multiply
    1,565,969.17x = 2,160,935.16 × 921,264.79
  4. Step 4: Simplify right side
    1,565,969.17x = 1,990,793,476,381.02
  5. Step 5: Solve for x
    x = 1,990,793,476,381.02/1,565,969.17
  6. Step 6: Final answer
    x = 1,271,285.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.